Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-12-18
AIPConf.Proc.915:559-562,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTeX 2e, 4 pages, 4 ps figures, uses aipproc.cls. Talk delivered by U. D'Alesio at the "17th International Spin Physics Sympo
Scientific paper
10.1063/1.2750843
Our understanding of the transverse spin structure of hadrons might definitely get improved by the information we gather on transverse momentum dependent (TMD) distributions. These new functions could also be crucial for a description of the observed transverse single spin asymmetries (SSA). In a hard scattering model for inclusive hadronic reactions, based on a generalized QCD factorization scheme, many mechanisms - namely the Sivers, Collins, Boer-Mulders effects - might contribute to a SSA. We show how the k_T dependent phases arising from the partonic kinematics together with a suitable choice of experimental configurations could help in disentangling the above mentioned effects. We discuss their potential role in two inclusive hadronic processes: heavy meson and photon production in pp and p pbar collisions.
D'Alesio Umberto
Murgia Francesco
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